ACI Worldwide (ACIW) vs Klaviyo Series A (KVYO)
Head-to-head comparison of performance, valuation, growth, profitability and dividends. Prices delayed 15 minutes; data as of Oct 9, 2026.
Summary
ACI Worldwide (ACIW) has outperformed Klaviyo Series A (KVYO) over the past year, losing 3.4% versus a loss of 32.8%. Klaviyo Series A is the larger company by market cap ($5.26 billion vs $5.16 billion), about 1.0 times the size. On valuation, ACI Worldwide trades at a lower forward P/E (13.1x vs 16.6x for Klaviyo Series A).
ACI Worldwide converts more of its revenue into profit, with a net margin of 12.9% versus -2.6%.
Summary generated from market data by MetaCap's automated system. Methodology
Relative performance
Percent change in share price from the first common trading day shown; excludes dividends.
Head-to-head
| Metric | ACIW | KVYO |
|---|---|---|
| Share price | $51.07 | $17.57 |
| Market cap | $5.16B | $5.26B |
| 1-day change | +0.83% | +0.92% |
| YTD return | +6.82% | -45.89% |
| 1-year return | -3.44% | -32.76% |
| 5-year return | +63.69% | — |
| P/E ratio (TTM) | 23.32 | 585.67 |
| Forward P/E | 13.06 | 16.61 |
| EPS (TTM) | $2.19 | $0.03 |
| Dividend yield | 0.00% | 0.00% |
| Annual dividend | $0.00 | $0.00 |
| Revenue (latest FY) | $1.76B | $1.23B |
| Revenue growth (YoY) | +10.38% | +31.63% |
| Net income (latest FY) | $226.66M | $-31.77M |
| Gross margin | 48.99% | 74.67% |
| Operating margin | 18.75% | -5.49% |
| Net margin | 12.88% | -2.57% |
| 52-week high | $61.08 | $33.36 |
| 52-week low | $38.05 | $12.53 |
| Distance from 52-week high | -16.39% | -47.32% |
| Analyst consensus | none | strong_buy |
| Avg. price target upside | +31.84% | +51.22% |
| Average volume | 903.15K | 6.00M |
| Shares outstanding | 100.96M | 140.90M |
| Employees | 2,930 | 2,400 |
| Sector | Technology | Technology |
| Industry | Computer Software: Prepackaged Software | Computer Software: Prepackaged Software |
Highlighted cells mark the higher value for growth, returns, margins and yield, and the lower value for P/E ratios. Highlighting is a mechanical comparison, not a recommendation.
Key differences
- ACIW has outperformed KVYO by 29.3 percentage points over the past year.
- Klaviyo Series A trades at a higher earnings multiple (585.7x vs 23.3x trailing P/E).
- ACI Worldwide is more profitable, keeping 12.9 cents of every revenue dollar as net income versus -2.6 cents for Klaviyo Series A.
- Klaviyo Series A grew revenue faster in its latest fiscal year (+31.63% vs +10.38%).
About ACI Worldwide
ACIW stock →ACI Worldwide, Inc. develops, markets, installs, and supports software products and services for facilitating electronic payments in the United States and worldwide.
Technology · Computer Software: Prepackaged Software · 2,930 employees
About Klaviyo Series A
KVYO stock →Klaviyo, Inc. provides a cloud-based software-as-a-service platform in the United States, rest of the Americas, the Asia-Pacific, the United Kingdom, rest of Europe, the Middle East, and Africa.
Technology · Computer Software: Prepackaged Software · 2,400 employees
ACIW vs KVYO FAQ
Which is bigger, ACI Worldwide or Klaviyo Series A?
Klaviyo Series A (KVYO) is larger, with a market capitalization of $5.26B compared with $5.16B for ACI Worldwide (ACIW).
Which stock has performed better over the past year, ACIW or KVYO?
ACIW returned -3.44% over the past 12 months, compared with -32.76% for KVYO (price return, excluding dividends). Past performance does not predict future results.
Which has the lower P/E ratio, ACIW or KVYO?
ACIW has the lower trailing P/E at 23.3, versus 585.7 for KVYO. A lower P/E is not by itself a sign of a better investment; it can reflect slower expected growth or higher risk.
Are ACI Worldwide and Klaviyo Series A in the same industry?
Yes. Both are classified in the Computer Software: Prepackaged Software industry within the Technology sector.